why is this showing a TypeError: View_Account.go_to_modify_account() missing 1 required positional argument: 'id'

huangapple
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英文:

why is this showing a TypeError: View_Account.go_to_modify_account() missing 1 required positional argument: 'id'

问题

更新按钮不起作用的原因是在 self.modify_account 方法中，您尝试使用 id 参数，但没有为该方法提供该参数。这可能导致类型错误。

您可以尝试做以下修改，将 self.modify_account 方法修改为不需要参数的方法，然后在该方法内部获取选定行的 id：

  1. def modify_account(self):
  2.     if not self.table.selection():
  3.         messagebox.showinfo('Update Account', 'Please select an account to modify')
  4.     else:
  5.         for selected_row in self.table.selection():
  6.             row = self.table.item(selected_row)
  7.             id = row['values'][0]
  8.             self.go_to_modify_account(id)

通过这种方式，modify_account 方法将从选定行中获取 id，而无需在方法调用时传递参数。这应该解决类型错误问题。如果仍然存在问题，请提供更多详细信息以供进一步帮助。

英文: 
  1. class View_Account(tk.Frame):
  2.     def __init__(self,master):
  3.         tk.Frame.__init__(self,master)
  5.         self.parent = master
  6.     
  7.         main_frame = tk.Frame(self, width=750, height=450, bg='white')
  8.         main_frame.pack(fill='both', expand='yes')
  10.         self.Frame1 = tk.Frame(self, width=750, height=100, bg='pink')
  11.         self.Frame1.place(x=0, y=0)
  13.         self.Frame2 = tk.Frame(self, width=750, height=450, bg='#E8E4C9')
  14.         self.Frame2.place(x=0, y=100)
  16.         self.view_acc = tk.Label(self, text='View Account', font=('Algerian', 26), bg='pink')
  17.         self.view_acc.place(x=90, y=10)
  19.         self.modify_acc = tk.Button(self, text='Modify Account', font=('Algerian', 13), command=self.go_to_modify_account)
  20.         self.modify_acc.place(x= 40, y=60)
  22.         self.delete_acc = tk.Button(self, text='Delete Account', font=('Algerian', 13), command=self.delete_account)
  23.         self.delete_acc.place(x= 200, y=60)
  25.         self.back_button = tk.Button(self, text='Back', font=('Algerian', 13), command=self.go_to_admin_dashboard)
  26.         self.back_button.place(x= 5, y=5)
  28.         columns = ('id','fullname','birthdate','address','email','contact_number','card_number','pin','initial_deposit')
  29.         
  30.         self.table = ttk.Treeview(self, columns=columns, show='headings', selectmode='browse')
  31.         self.table.heading('id', text='id')
  32.         self.table.heading('fullname', text='Name')
  33.         self.table.heading('birthdate', text='Birthdate')
  34.         self.table.heading('address', text='Address')
  35.         self.table.heading('email', text='Email')
  36.         self.table.heading('contact_number', text='Contact #')
  37.         self.table.heading('card_number', text='Card Number')
  38.         self.table.heading('pin',text='PIN')
  39.         self.table.heading('initial_deposit',text='Initial Deposit')
  41.         self.table.column('id', width=5)
  42.         self.table.column('fullname', width=70)
  43.         self.table.column('birthdate', width=70)
  44.         self.table.column('address', width=115)
  45.         self.table.column('email', width=145)
  46.         self.table.column('contact_number', width=80)
  47.         self.table.column('card_number', width=115)
  48.         self.table.column('pin', width=50)
  49.         self.table.column('initial_deposit', width=100)
  51.         self.table.place(x=0, y=102)
  53.         self.table.configure(height=16)
  55.         self.update_table()
  57.     def update_table(self):
  58.         self.client_account = self.get_client_account()
  59.         
  60.         self.table.delete(*self.table.get_children())
  62.         for client in self.client_account:
  63.             row = (
  64.                 client.id,
  65.                 client.fullname,
  66.                 client.birthdate,
  67.                 client.address,
  68.                 client.email,
  69.                 client.contact_number,
  70.                 client.card_number,
  71.                 client.pin,
  72.                 client.initial_deposit
  73.             )
  74.             self.table.insert('', tk.END, values=row)
  75.     
  76.     def get_client_account(self):
  77.         db_conn = database_handler.DBHandler()
  78.         self.client_account = db_conn.view_accounts()
  79.         db_conn.close()
  81.         return self.client_account
  82.     
  83.     def delete_account(self):
  84.         if len(self.table.selection()) == 0:
  85.             messagebox.showerror('Error', 'Select Account to delete.')
  86.         else:
  87.             proceed = messagebox.askyesno('Account Deletion', 'Do you wish to continue?')
  88.             if not proceed:
  89.                 return
  90.             for selected_row in self.table.selection():
  91.                 row = self.table.item(selected_row)
  92.                 id = row['values'][0]
  93.                 db_conn = database_handler.DBHandler()
  94.                 db_conn.delete_accounts(id)
  95.                 db_conn.close()
  97.                 self.update_table()
  98.     
  99.     def go_to_modify_account(self, id):
  100.         self.parent.change_window('Modify_Account', id=id)
  101.     
  102.     def modify_account(self):
  103.         if not self.table.selection():
  104.             messagebox.showinfo('Update Account', 'Please select an account to modify')
  105.         else:
  106.             for selected_row in self.table.selection():
  107.                 row = self.table.item(selected_row)
  108.                 id = row['values'][0]
  109.                 self.go_to_modify_account(id)
  112.     def go_to_admin_dashboard(self):
  113.         self.parent.change_window('Admin_Dashboard')
  115.     def on_return(self):
  116.         pass

why does the update button not work. it shows type error

i tried adding self to the id but it still does not work

答案1

得分: 2

根据文档，command= 需要一个没有参数的函数。所以你使用 command=self.foo 意味着你将调用 self.foo()，并且没有 id 参数。

为什么你在 go_to_modify_account 中期望一个 id 参数，但在其他地方没有？你是不是想要使用 command=modify_account？

英文:

At least according to the documentation, command= takes a function that has no arguments. So the fact that you have command=self.foo means that you're going to end up calling self.foo() and there is no id argument.

Why are you expecting an id argument in go_to_modify_account but none of the others? Did you mean command=modify_account?

huangapple
  • 本文由 发表于 2023年6月6日 03:08:46
  • 转载请务必保留本文链接：https://go.coder-hub.com/76409345.html
  • python
  • tkinter
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